what is the value of the function y = 2x + 3 ⁢when x=−1 ?

a. 5

b. 2

c. 1

d. −5

select is a function or is not a function to correctly classify each relation.

title is a function is not a function
{(3, , , , 8)}

{(2, , , , 4)}

{(2, , , , 6)}

{(3, , , , 4)}

put x=-1 in the equation

y=2(-1)+3=1

for the second one,

last two are not functions, as 6 has two different outputs.

second has two outputs for 2

so only first can be a fiction.

mark brainliest please

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)